drivers/net/fddi/skfp/ecm.c

Source file repositories/reference/linux-study-clean/drivers/net/fddi/skfp/ecm.c

File Facts

System
Linux kernel
Corpus path
drivers/net/fddi/skfp/ecm.c
Extension
.c
Size
12438 bytes
Lines
525
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

else if (cmd == EC_DISCONNECT) {
		smc->e.DisconnectFlag = TRUE ;
	}
	
	switch(smc->mib.fddiSMTECMState) {
	case ACTIONS(EC0_OUT) :
		/*
		 * We do not perform a path test
		 */
		smc->e.path_test = PT_PASSED ;
		smc->e.ecm_line_state = FALSE ;
		stop_ecm_timer(smc) ;
		ACTIONS_DONE() ;
		break ;
	case EC0_OUT:
		/*EC01*/
		if (cmd == EC_CONNECT && !smc->mib.fddiSMTBypassPresent
			&& smc->e.path_test==PT_PASSED) {
			GO_STATE(EC1_IN) ;
			break ;
		}
		/*EC05*/
		else if (cmd == EC_CONNECT && (smc->e.path_test==PT_PASSED) &&
			smc->mib.fddiSMTBypassPresent &&
			(smc->s.sas == SMT_DAS)) {
			GO_STATE(EC5_INSERT) ;
			break ;
		}
		break;
	case ACTIONS(EC1_IN) :
		stop_ecm_timer(smc) ;
		smc->e.trace_prop = 0 ;
		sm_ma_control(smc,MA_TREQ) ;
		for (p = 0 ; p < NUMPHYS ; p++)
			if (smc->mib.p[p].fddiPORTHardwarePresent)
				queue_event(smc,EVENT_PCMA+p,PC_START) ;
		ACTIONS_DONE() ;
		break ;
	case EC1_IN:
		/*EC12*/
		if (cmd == EC_TRACE_PROP) {
			prop_actions(smc) ;
			GO_STATE(EC2_TRACE) ;
			break ;
		}
		/*EC13*/
		else if (cmd == EC_DISCONNECT) {
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		break;
	case ACTIONS(EC2_TRACE) :
		start_ecm_timer(smc,MIB2US(smc->mib.fddiSMTTrace_MaxExpiration),
			EC_TIMEOUT_TMAX) ;
		ACTIONS_DONE() ;
		break ;
	case EC2_TRACE :
		/*EC22*/
		if (cmd == EC_TRACE_PROP) {
			prop_actions(smc) ;
			GO_STATE(EC2_TRACE) ;
			break ;
		}
		/*EC23a*/
		else if (cmd == EC_DISCONNECT) {
			smc->e.path_test = PT_EXITING ;
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		/*EC23b*/
		else if (smc->e.path_test == PT_PENDING) {
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		/*EC23c*/
		else if (cmd == EC_TIMEOUT_TMAX) {
			/* Trace_Max is expired */
			/* -> send AIX_EVENT */
			AIX_EVENT(smc, (u_long) FDDI_RING_STATUS,
				(u_long) FDDI_SMT_ERROR, (u_long)
				FDDI_TRACE_MAX, smt_get_error_word(smc));
			smc->e.path_test = PT_PENDING ;
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		break ;
	case ACTIONS(EC3_LEAVE) :
		start_ecm_timer(smc,smc->s.ecm_td_min,EC_TIMEOUT_TD) ;
		for (p = 0 ; p < NUMPHYS ; p++)
			queue_event(smc,EVENT_PCMA+p,PC_STOP) ;

Annotation

Implementation Notes